CHANGES OF STRUCTURAL PROPERTIES OF Cu FILMS AS RESULTS OF IMPACT OF LOW-POWER ENERGY IONS

Malik Erlanovich Kaliyekperov, D. I. Shlimas, Artem Leonidovich Kozlovskiy, Kairat K. Kadyrzhanov

2018

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DOI 10.52676/1729-7885-2018-3-83-86

Data confidence 70 medium

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Abstract

In this paper, we present the results of studies of the irradiation effect with low-energy He+2 ions with an energy of 30 keV (15 keV per charge) on the structural properties of Cu films. As a result of irradiation of initial samples with He+2 ions with a dose of 1·1016 ion/cm2, a change in the Cu surface morphology of films is observed, and the formation of nanoscale inclusions of hexagonal shape is observed. An increase in the irradiation dose to 1·1017 ion/cm2 and higher leads to the formation of cracks and amorphous oxide inclusions on the sample surface. It is established that an increase in the irradiation dose leads to a decrease in the degree of crystallinity and a change in the basic crystallographic characteristics.